It's a rare achievement attained only by the legendary champions of our sport after a brutal year-long test of athleticism, technique, endurance and mental strength: To stand alone and victorious at year's end as ATP World Tour No. 1.

ATP Heritage Program

Marking 40 years of the Emirates ATP Rankings, the ATP Heritage Programme celebrates a remarkable journey taken by players, tournaments and fans since 1973. Launched in February 2013, and incorporating the Emirates ATP Rankings, the ATP World Tour Awards presented by Moët & Chandon, player and tournament milestones and the Barclays ATP World Tour Finals, the ongoing programme will come to life through a collectible book, documentary-style TV programming, a celebration event, digital activations and more.

Lleyton Hewitt became only the fourth player to rank No. 1 for every week during the year and the seventh player to finish No. 1 for at least two straight years in a year that saw him win the Wimbledon title.

Rafael Nadal became the first left-hander to finish No. 1 since John McEnroe in 1984, in addition to becoming the first Spaniard in the history of the ATP Rankings to end the season as the world's top player.

The ATP World Tour was unveiled with a simplified tour structure, featuring a new point scale for the Emirates ATP Rankings and tournament tiers of ATP World Tour Masters 1000, ATP World Tour 500 and ATP World Tour 250 events.

Lleyton Hewitt became only the fourth player to rank No. 1 for every week during the year and the seventh player to finish No. 1 for at least two straight years in a year that saw him win the Wimbledon title.

Rafael Nadal became the first left-hander to finish No. 1 since John McEnroe in 1984, in addition to becoming the first Spaniard in the history of the ATP Rankings to end the season as the world's top player.

The ATP World Tour was unveiled with a simplified tour structure, featuring a new point scale for the Emirates ATP Rankings and tournament tiers of ATP World Tour Masters 1000, ATP World Tour 500 and ATP World Tour 250 events.